POINT REMOVAL FOR FITTING SPHERES TO 3-D LASER SCANNER DATA

Published

November 11, 2014

Author(s)

Katharine M. Shilling, Balasubramanian Muralikrishnan, Daniel S. Sawyer

Abstract

The proliferation of laser scanners in a number of industries such as the metrology of large artifacts, digitization and reverse engineering, historical preservation and archiving has led to the need for documentary Standards to establish and compare the performance of laser scanners. Volumetric performance can be established by measuring a set of point to point distances. With laser scanners, the points are not directly measured but instead derived from finding the best-fit center coordinates of spheres that are within the measurement volume of the scanner. Laser interaction with spherical targets leads to a number of target-dependent errors that are particularly predominant where the angle between the laser beam and the sphere normal (angle of incidence) is high. In an effort to eliminate data points that adversely affect the center coordinate of the best-fit sphere to the data, we will investigate the impact of removing the data points from areas of high angle of incidence.

Proceedings Title

Proceedings of the Annual Meeting of the ASPE 2014

Conference Dates

November 9-14, 2014

Conference Location

Boston, MA

Pub Type

Conferences

Keywords

3D laser scanners, best-fit sphere, volumetric performance evaluation

Citation

Shilling, K. , Muralikrishnan, B. and Sawyer, D. (2014), POINT REMOVAL FOR FITTING SPHERES TO 3-D LASER SCANNER DATA, Proceedings of the Annual Meeting of the ASPE 2014, Boston, MA (Accessed April 25, 2024)